Hitch for tractor-drawn plows



Feb. 12, 1952 J. F. BROWN HITCH FOR TRACTOR-DRAWN FLOWS 4 Sheets-Sheet 1 Filed Feb. 4, 1949 mi N llmrnlor JE5SE 1: BR WN Attorm'y Feb. 12, 1952 J. F. BROWN HITCH FOR TRACTOR-DRAWN FLOWS v 4 Sheets-Sheet 2 Filed Feb. 4, 1949 JISS E BROWN Q Ma Atlnrliey Feb. 12, 1952 J. F.- BROWN 2,585,085

HITCH FOR TRACTOR-DRAWN FLOWS Filed Feb. 4, 1949 4 Sheets-Sheet 3 Illuvnlnr l 4/ dESSE FT BROWN 45 H QM Q 5 47 J. M

4/ Artur/Iv Feb. 12, 1952 J. F. BROWN HITCH FOR TRACTOR-DRAWN FLOWS '4 Sheets-Sheet 4 Filed Feb. 4, 1949 Ill'l'l'lllOl JESSE Fl B/FOW/V Attorney Patented Feb. 12, 1952 LSTATES PATENT OFFICE ApplicationvFebluary 4, 1949, SeriaIN0. 74;591

1 Claim.

"Phefpresent'inventiom relates '"to" a hitch for tractor'fdrawn plows and itrconsists in the combinations, constructions "and arrangements of parts herein described and claimed.

Generally there is provided ahitch for interconnecting'altractor drawnplow with its tractor andmeansds'provided' f or "controlling the depth of""the"' plows'in" the groundan'd" also for control- .lingithe 'pos'itiomofthe; plows laterallywith' respect-"to 'theflongitudinal axis "of the tractor.

Leverssareiplacedi conveniently to the operator of the tractor for e'fie'cting these means.

It is accordinglyeanlobject of the invention to provide an apparatus of the character set forth "which is'simple'inconstruction and'operation and yet efiective and efiicient in use.

Anothernobjecttbf i the;.invention .is the provision of. an apparatus of the character set forth wherein means is provided for regulating the position ofra tractor-drawn plow with respect to thelon'gitudinal axis of the tractor and-wherein separate independent" meansis provided for regi'ilatingthesdepth of the plowin the ground.

Another object of the invention is the provision ofan apparatus of the character set forth which may be easily and quickly mounted upon or dismounted from a tractor.

Other and further objects of the invention will become apparent from a reading of the following specification taken in conjunction with the 1,

7 8-6 of Figure 1,

Figure 7 is a sectional view taken along line 1-1 of Figure 6, and

Figures 8 to 10, inclusive, are fragmentary perspective views illustrating certain details of the invention.

Referring more particularly to the drawings, there is shown therein a tractor l having a frame II and provided with rear wheels l2 mounted upon an axle l3. There is also provided a seat It for the operator of the tractor.

Afllxed to the frame adjacent the rear end and at either side thereof is a depefidaht arm I 5 "which is attached" to the frame by meansisof bolts IE. Each of the arms I5 is interconnected withtheframe II by means era brace-member H which is attachedto the frame I hand arm' 'l 5 by means of bolts I 8 and I 9, respectively. "The lower ends of the arms l5are each providedwith a series of vertically":arrangedholesf20. 'A- transversely extending rod'2I "extends throughslected openings in the arms l5 andthroughpairso'f inks 22 pivotally connected by means ofibolts 23 to the front end of 'horizontallyi'extending draw bars 24 and the outer ends 'ofthe"rod"2l are provided with cotter pins 25.

To an axle housing 28 for theaxle 'l3fthereiiis affixed a pair of dependant'stabilizer arms '21 and 28 upon the right and left sides of the" tractor id, respectivelyIThearms 21 and 281 aretpre'ferably and as shown formed of angleiron and are interconnected by means of a transverselyiextending integrally formed brace 29. The arm' "21 is provided With a pair of outwardly extending ears 39 through which extends a vertically mounted pin 3! which is held in position-by means of a cotter pin 32. The right handdraw bar 24 extends between the pin.3l and. the arm 21.

Slidably arranged upon the arm'28is a vertically extending guide member 32a likewise formed of angle iron and provided with a slot 33 formed in one side thereof and extending vertically therein. A bolt 34 affixed to the arm 28 extends through the slot 33 and is provided with a washer 35 and nut 35 at its outer end.

The lower end of the guide member 32a, is affixed to the left hand draw bar 24. Each of the draw bars 24 is provided with a bracket 38 which is attached to the inner sides thereof by means of bolts 39 and which brackets extend rearwardly in parallel relation to the rearward extremities of the draw bar 24.

A pair of mounting plates 40 is affixed by means of bolts 4| to the rear of the axle housing and each is provided with an integrally formed ear 42 which extends vertically and rearwardly thereof. Each of the plates 40 is also provided with an integrally formed segment 43 Which extends vertically and rearwardly.

The segments 43 are interconnected with their respective ears 42 by means of bolts 44 upon each of which respectively is pivotally mounted a left hand operating lever 45 and. a right hand operating lever 46. The levers 45 and 43 are respectively supplied with integrally formed rearwardly extending arms 41 and 48 and to the outer ends of each of which is respectively pivotally con- 3 nected a downwardly extending link 49 and a downwardly extending link 50.

A plow generally indicated at is provided with a pair of downwardly and forwardly extending arms 52 and 53, the same being upon the right and left sides thereof, respectively. Removable pins 54 extend through the rear ends of the draw bars 24, the respective arms 52 and 53, the respective lower ends of the links 50 and 49 and the brackets 38 and are provided at their inner ends with cotter pins 55 to hold the same in position.

The levers 45 and 46 are provided with conventional latch members 56 and 51, respectively, operable by means of hand levers 58 and 59, respectively, and which latch members are engageable with the segments 43.

A lifting bail 60 is pivotally mounted upon the bolts 44 and its outer end is provided with a chain 6| which is attachable to an eye 62 mounted upon the upper side of the rear of the plow. The bail 60 is provided with upwardly extending ears 63 which are interconnected with levers 64 by means of chains 65 and the levers 64 are aifixed to a transversely extending revoluble shaft 66 which is controlled by means of a foot pedal 61.

In operation, it will be seen that forward movement of the left hand lever 45 will cause a raising of the arm 41 and consequently a lifting of the link 49 and an upward movement of the left hand draw bar 24, the same pivoting upon the pin 2| during such movement. When such movement occurs the guide member 32a will move upwardly carrying with it the arm 53 of the plow 5| thus tilting the plow. It will be seen that the forward or rear movement of the left hand lever 4-5 will therefore control the angular relation of the plow blades with the level of the ground.

Again, forward movement of the right hand lever 46 will cause an upward movement of the arm 48 and consequently an upward movement of the link 50 thus raising the right hand draw bar 24 and consequently lifting the front right end of the plow 5| to thus regulate the depth of the plow blade with respect to the ground.

While but one form of the invention has been shown and described herein, it will be readily apparent to those skilled in the art that many minor modifications may be made without departing from the spirit of the invention or the scope of the appended claim.

What is claimed is:

An apparatus of the character described comprising, in combination, a tractor having a frame, a plow adapted to be drawn by said tractor, a hitch for interconnecting the plow and the tractor, means for regulating the penetrability of the plow into the ground and means for controlling the angular relation of the plow to the ground, said means for regulating the penetrability of the plow including a transversely extending power shaft carried by said tractor, a rearwardly extending yoke having its legs pivotally connected at each side of said tractor, a pair of levers affixed to said shaft, an ear extending upwardly from each leg of said yoke, a chain interconnecting each ear with one of said levers affixed to said shaft, and a chain interconnecting the bight portion of the yoke with the upper rear portion of said plow whereby to raise and lower the same, and said means for controlling the angular relation of the plow including an operating lever mounted upon each side of the tractor and linkage and levers interconnecting each of the operating levers with its respective side of the front of the plow whereby to tilt the same.

JESSE F. BROWN.

REFERENCES CITED The following references are of record in the file of this patent: v I

UNITED STATES lATENTS 

